The integrated circuit used in this detector is uncommon today. We found it in a documentation from the 70s. Detection is done by an optical camera with LEDs and a photo sensor.
The purpose of this circuit is to sense the water level in the windshield wiper reservoir. The circuit...
We found this circuit in Popular Electronics from January/February 1969. The circuit must be...
This circuit shows how to interface a CMOS circuit with a microcontroller or other circuit using an...